CN103016545A - Turbocharger rotating assembly - Google Patents

Turbocharger rotating assembly Download PDF

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Publication number
CN103016545A
CN103016545A CN2012104103629A CN201210410362A CN103016545A CN 103016545 A CN103016545 A CN 103016545A CN 2012104103629 A CN2012104103629 A CN 2012104103629A CN 201210410362 A CN201210410362 A CN 201210410362A CN 103016545 A CN103016545 A CN 103016545A
Authority
CN
China
Prior art keywords
axle sleeve
counterbore
bearing
axially
axle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012104103629A
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Chinese (zh)
Other versions
CN103016545B (en
Inventor
R·M·科赫
C·梅尼戈
G·F·汤普森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Garrett Power Technology (Shanghai) Co.,Ltd.
Original Assignee
Honeywell International Inc
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Filing date
Publication date
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Publication of CN103016545A publication Critical patent/CN103016545A/en
Application granted granted Critical
Publication of CN103016545B publication Critical patent/CN103016545B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F16C2360/24—Turbochargers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supercharger (AREA)

Abstract

A turbocharger rotating assembly includes a bearing; a shaft and turbine wheel assembly supported by the bearing; a seal ring disposed about the shaft; and a sleeve that supports the bearing and that includes a compressor end and a turbine end, a bore extending axially from the compressor end to the turbine end, a first counter bore that forms an axial face that axially locates the bearing in the bore, a second counter bore disposed axially between the first counter bore and the turbine end wherein the second counter bore comprises a seal surface that forms a lubricant and exhaust seal with the seal ring disposed about the shaft, and a securing feature to secure the sleeve with respect to a turbocharger housing. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Description

The turbosupercharger Runner assembly
Technical field
The disclosed theme of the application relates generally to the turbomachinery for internal-combustion engine, and relates in particular to Runner assembly.
Background technique
The turbosupercharger of exhaust gas drive comprises rotating group, and this rotating group comprises turbine and the compressor impeller that connects by axle each other.Axle typically is rotatably supported in the center housing by one or more bearings (for example, the bearing of oil lubrication, pneumatic bearing, ball bearing, magnetic bearing etc.).Duration of work, from the turbine of the exhaust-gas-driven turbo charger of internal-combustion engine, and then the turbine driven compressor impeller is to advance pressurized air to internal-combustion engine.
Duration of work, the rotating group of turbosupercharger must be by large-scale speed operation.Depend on the factors such as size such as turbosupercharger, the top speed that reaches can surpass 200,000rpm.The turbosupercharger rotating group that each side is coordinated is very important for suitable rotor dynamics performance.Obtain low-level unbalanced effort and help to guarantee the stability of axle and rotor deflection is minimized, and and then work to reducing bearing load.The bearing load that reduces causes the endurance that is improved and the noise that reduces (for example, by the generation of vibration that transmits).
In order to reduce vibration, turbosupercharger rotating group balance comprises parts and assembly balance.When assembly typically uses the high speed balancing treatment process to carry out balance, typically use slow-speed of revolution treatment process to carry out balance such as the separate part of compressor and turbine assembly.Usually, such assembly comprises housing (for example, center housing) and is considered to center housing and Runner assembly (CHR).
Various equilibrium relations are derived from CHRA design, especially be characterised in that can the regulation assembling sequence parts.For example, many center housings constitute via compressor side opening receiving axes and hold and via turbine side opening receiving axes.In such configuration, in case axle and bearing correctly are arranged in the center housing (for example, as CHRA), it is significant removing this axle of balance and this bearing.In other words, in case these parts are inserted in the center housing to form CHRA, balance might not be guaranteed suitable balance as axle and the bearing of assembly (for example, arranging) in anchor clamps before being inserted into center housing.For example, between the seat ring of bearing or rolling element and axle, need to be pressed into and cooperate, be difficult to not be pressed into cooperation, in element, insert center housing and when obtaining to rearrange accurately, again be pressed into fitted bearing and axle.
Various technology described in the application relate to assembly, and it comprises axle sleeve, and its Intermediate shaft sleeve can be, for example, constitute radial journal bearing and shaft assembly and are coupled in the center housing.Such method can optionally promote balance, will the noise relevant with balance, and vibration and roughness (NVH) etc. minimize.Such method can improve the stock, makes, and checks, safeguards, repair, and displacement (for example, with the element with identical or different feature).
Description of drawings
Can be with reference to following embodiment to the described the whole bag of tricks of the application during example shown in by reference to the accompanying drawings, device, assembly, system, arrange wait with and equivalents understand more completely, wherein:
Fig. 1 is turbosupercharger and together with the graphical diagram of the internal-combustion engine of controller;
Fig. 2 is the cross section exploded view of an example of turbosupercharger Runner assembly that comprises the example of axle sleeve;
Fig. 3 is the sectional view of assembly shown in Figure 2;
Fig. 4 is the compressor end view of assembly shown in Figure 3;
Fig. 5 is Fig. 2, a series of views of the example of axle sleeve shown in 3,4 and another example of axle sleeve;
Fig. 6 is Fig. 2, a series of views of the parts of assembly and sub-component shown in 3 and 4;
Fig. 7 is parts, a series of views of sub-component and turbosupercharger Runner assembly;
Fig. 8 is the skeleton diagram of example that forms the method for various assemblies.
Embodiment
As described in this application, axle sleeve can comprise compressor end and turbine end, from compressor end axially to hole that turbine end is extended, form axial vane surface with first counterbore (counter bore) of the bearing in the positioning hole axially, axially be arranged in the second counterbore between the first counterbore and the turbine end, wherein the second counterbore comprises sealing surfaces and fastener, the sealing surface forms oiling agent and exhaust sealing with the seal ring of arranging around the axle that is supported by bearing, and fastener is fastening with respect to turbocharger housing with axle sleeve.
Described in the application, such axle sleeve can optionally provide a large amount of manufacturings of best practices with conventional art.In other words, existing when adopting in manufacture process, in the time of the produced on-site technology, can introduce the turbosupercharger Runner assembly that comprises such axle sleeve.
Described in the application, axle sleeve can be provided for increasing the manufacturing output of rotating element bearing rotary subgroup (for example, ball bearing, the rolling element bearing of other type).The use of axle sleeve can be allowed the pre-assembled of multiple parts, and and then to increase the advantage of balance, for example, minimize the noise relevant with balance, vibration, and roughness (NVH).Usually, such axle sleeve can alleviate the balance cost for pre-assembled rotating element bearing rotary subgroup, time etc.
Described in the application, can be so that the optional scope variation of turbosupercharger rotating element bearing and Sealing for example, be used for aerodynamic application based on the method for axle sleeve.Method based on axle sleeve can be so that the envelope size of rolling element bearing and rotor set Sealing size and rolling element bearing diameter designs independently of one another.For example, based on the method for axle sleeve can optionally allow to use have arbitrarily and the ball bearing of overall dimension or ball in axle design and the pre-assembled ball bearing and the rotor set that seal.Described in the application, bearing and turbine closed hole inserting member can be self the anchor clamps for pre-balance operation.In addition, can offer rolling element bearing based on the method for axle sleeve and re-use, check, safeguard, displacement etc.Described in the application, can cause the research and development time, inspection test time, inventory time, parts tracking time, built-up time, review time, maintenance time, the minimizing of replacing time etc. based on the method for axle sleeve.
Below, at parts, assembly, after each example of method etc., description be the example of turbocharged engine system.
Turbosupercharger is used the output with increasing combustion engine frequently.With reference to Fig. 1, traditional system 100 comprises internal-combustion engine 110 and turbosupercharger 120.Internal-combustion engine 110 comprises the engine cylinder-body 118 of the firing chamber that holds one or more operatively live axles 112 (for example, via piston).As shown in Figure 1, suction port 114 is provided for air to the flow path of engine cylinder-body 118 and relief opening 116 is provided for the flow path from the exhaust of engine cylinder-body 118.
Equally as shown in Figure 1, turbosupercharger 120 comprises suction port 134, axle 122, compressor 124, turbine 126, housing 128 and relief opening 136.Housing 128 is disposed between compressor 124 and the turbine 126 and can be called center housing owing to it.Axle 122 can be the shaft assembly that comprises multiple parts.In the work, turbosupercharger 120 has played the effect of extracting energy from the exhaust of internal-combustion engine 110 by turbine 126 is passed through in exhaust.As shown in FIG., the rotation of the turbine 127 of turbo machine 126 is so that the density that axle 122 rotates and therefore the compressor impeller 125 (for example, impeller) of compressor 124 compresses and then be increased to the inlet air of motor 110.By importing the fuel of optimised quantity, system 100 can extract more specific power (for example comparing with the non-turbosupercharged engine of same discharge capacity) from motor 100.For the control extraction flow, in the example of Fig. 1, turbosupercharger 120 comprises variable geometry unit 129 and waste gate valve 135.Variable geometry unit 129 can work to be controlled to the extraction flow of turbine 127.Waste gate valve (or being known as simply wastegate) 135 is arranged as near the position of the import of turbine 126 and can be controlled as and allows to walk around turbine 127 from the exhaust of relief opening 116.
In addition, for exhaust gas recirculatioon (EGR) is provided, such system can comprise that conduit is to guide to exhaust in the air inlet path.Shown in the example of Fig. 1, relief opening 136 can comprise branch 115, wherein can control via valve 117 by the flow in this branch 115 to suction port path 134.In such layout, exhaust can provide in the upstream of compressor 124.
In Fig. 1, an example of controller 190 is shown as and comprises one or more processors 192, storage 194 and one or more interface 196.Such controller can comprise circuit, such as the circuit of control unit of engine.As described in this application, several different methods or technology can optionally in conjunction with controller, for example, by control logic, be implemented.Control logic can depend on one or more engine conditions (for example, turbine rpm (rpm), motor rpm, temperature, load, oiling agent, cooling etc.).For example, sensor can be via one or more interface 196 transmission information to controller 190.Control logic can rely on such information and, and then controller 190 can be exported control signal with control engine work.Controller 190 can constitute the control flow of lubricant, temperature, the variable-geometry assembly (for example, variable geometry compressor or turbine), wastegate, exhaust-gas-recirculation valve, electric motor, or and motor, one or more other parts that turbosupercharger (or a plurality of turbosupercharger) etc. are relevant.
Fig. 2 shows an example of turbosupercharger Runner assembly 200, and it comprises by the axle 220 that is arranged in bearing 230 supportings in the axle sleeve 240 that may be inserted in the housing 280.Shown in the example of Fig. 2, axle 220 extend to turbine 260 with form axle and wheel assembly (SWA) and be included in axle 220 and axle sleeve 240 between the zone of sealing mechanism 250.
In the example of Fig. 2, axle sleeve 240 comprises the axial vane surface 241 that is positioned at the compressor end place, one or more recessed exterior surface 242, one or more recessed axial vane surfaces 243, outer surface 244 and the axial vane surface 246 that is positioned at the turbine end place.The axial vane surface 241 that is positioned at the compressor end place comprises various fastening pieces 245, and for example, it can be thread socket.Axle sleeve 240 also comprises circular groove 247 and the circular groove 249 that is arranged between compressor end and the turbine end, circular groove 247 is in order to (for example to install seal element 270 around lubricant passageway 248, O shape circle) and circular groove 249 in order to seal element 279 seal ring of piston ring (for example, such as) to be installed.
About housing 280, it comprises the various features that allow to receive axle sleeve 240 and SWA (for example, axle 220 and turbine 260).In the example of Fig. 2, housing 280 comprises the axial vane surface 281 that is formed by the counterbore 282 that is positioned at the compressor end place.Near counterbore 282 be one or more local counterbores 283, for example, it axially extends inwardly to main aperture 284 from axial vane surface 281.As shown in FIG., main aperture 284 extends to axial vane surface 286 in the turbine end of housing 280 from counterbore 282.What arrange along main aperture 284 is circular groove 287, and this circular groove 287 is in order to install seal elements (for example, seal element 270) around lubricant passageway 288.In addition, housing 280 can comprise various cooling channels 289, for example, transmits away from hole 284 to allow heat energy.Equally, at the compressor end place of housing 280, there is the fastening piece 285 that is used for receiving each bolt 295.
About counterpart, one or more recesses such as the axial vane surface 241 of the axle sleeve 240 that limited by one or more recessed exterior surface 242 can be with respect to one or more local counterbore 283 location of housing 280, for example, allow fastening piece 245 to align with thus that axle sleeve 240 is fastening with respect to housing 280 with the fastening piece 285 that is used for inserting bolt 295.In such example, no matter whether bolt 295 inserts, the rotation of the axle sleeve 240 in the main aperture 284 of the recesses limit housing 280 of one or more local counterbores 283 and one or more axial vane surface 241.Therefore, the rotating force that is passed to axle sleeve 240 can be applied on one or more local counterbores 283, it can reduce or prevent the transmission of power, this power with can so that the mode of dismounting difficulty (for example, bent bolt, the screw thread of sliding tooth etc.) to bolt 295 or fastening piece 245 or 285 injuries.
In the example of Fig. 2, cooperation can also exist between the groove 287 of the groove 247 of axle sleeve 240 and housing 280.Such method can help to avoid the usually mistake conduction of the oiling agent between 248 passages 248 and 288 that occur from passage 288 to passage.In addition, the seal element 279 that is arranged in the groove 249 of axle sleeve 240 can reduce from the transmission of the exhaust of turbine and the transmission of oiling agent, for example, considers the seepage of seal element 270 or lacks such seal element.Although the example of Fig. 2 shows the circular groove in the axle sleeve 240, replacedly or additionally, such groove can exist in the main aperture 284 of housing 280.In addition, although axle sleeve 240 all is depicted as the groove that comprises for seal element 270 is installed with housing 280, only the groove in can enough be installed seal element in such element.
Fig. 3 shows the sectional view of the assembly 200 of Fig. 2, has the bearing 230 that is received by axle sleeve 240 and the axle sleeve 240 that is received by housing 280.Particularly in this sectional view, the axial vane surface 241 of axle sleeve 240 is in abutting connection with the axial vane surface 281 of housing 280.In addition, there is shown the various features of sealing mechanism 250.
About bearing 230, it comprises inner race 234, rolling element 235 and outer race 236, and this outer race 236 can comprise lubricant aperture 238.As shown in FIG., axle 220 is press-fit on the inner race 234; Therefore, axle 220 rotates around outer race 236 as a unit with inner race 234, and this outer race 236 can optionally be fixed or otherwise limit its ability in axle sleeve 240 interior rotations (for example, via location or antirotation element such as pin).With respect to the axial position of bearing 230, outer race 236 is axially located by the axial vane surface 255 of the counterbore 256 of axle sleeve 240.
In the example of Fig. 3, axle sleeve 240 also comprises lubricant passageway 252, and it can have the cross-section area larger than lubricant passageway 248.In addition, have opening between axial vane surface 254 and axial vane surface 257, it can be prepared for the discharge of oiling agent.
About sealing mechanism 250, it can comprise surface, the circular groove 265 in the part of axle 220 and the seal element 275 that is arranged at least in part groove 265 that the counterbore 258 by axle sleeve 240 forms.As mentioned, another sealing can and be arranged in the seal element 279 of groove 249 along outer surface 244 formation of axle sleeve 240 at least in part via groove 249.Such sealing can play reduce mobile in the compressor direction and with the effect of the exhaust of mix lubricant.Therefore, described in the application, assembly can comprise the concentric arrangement of sealing, and sealing plays the extremely effect of the passage of the exhaust in one or more holes (for example, the hole of the hole of axle sleeve and housing) of exhaust gas region that reduces from turbosupercharger.In such example, sealing be about rotatable member (that is, axle) and another sealing be about fixed element (that is, axle sleeve).
Usually, may more difficultly keep about the sealing of rotatable member and may use the minimized size such as flow area is made.In addition, although single sealing has been shown, can depend on a plurality of grooves, a plurality of seal elements etc. in the sealing between axle sleeve 240 and the housing 280 or the sealing between axle 220 and axle sleeve 240 in the example of Fig. 3.Further in addition, the two all can depend on a plurality of grooves, a plurality of seal elements etc. (for example, to form labyrinth etc.).
Fig. 4 shows the compressor end view of the assembly 200 of Fig. 2 and Fig. 3.In example shown in Figure 4, three bolts 295 are inserted in three openings 285 with fastening shaft sleeve 240 in housing 280.
As describing among the application, the turbosupercharger Runner assembly can comprise bearing; Axle and turbine assembly by described bearing supporting; Seal ring around described axle layout; And block bearing and comprise compressor end and the axle sleeve of turbine end, axially extend to the hole of turbine end from the compressor end axle, formation axially is positioned at bearing the first counterbore of the axial vane surface in the hole, axially be arranged in the second counterbore between the first counterbore and the turbine end, wherein the second counterbore comprises sealing surfaces and fastening piece, the sealing surface forms oiling agent and exhaust sealing with the seal ring of arranging around axle, and fastening piece is fastening with respect to turbocharger housing with axle sleeve.In such assembly, bearing when in the hole that axially is positioned at axle sleeve, can axially stretch out from compressor end.About the fastening piece of axle sleeve, one or more sockets can be arranged along the axial vane surface of axle sleeve at compressor end.In addition, housing can comprise aliging with the socket of axle sleeve and carries out cloth setting in the socket (for example, being used for passing the end of bolt) at compressor end place.As described in this application, axle sleeve can optionally comprise around the circular groove of outer surface and be arranged in seal ring in the circular groove (for example, to form sealing in the hole of axle sleeve and the housing that axle sleeve will be inserted).
Such as Fig. 2, shown in 3 and 4 the example, Fig. 5 shows the various views of axle sleeve 240.Particularly, Fig. 5 shows the perspective view of axle sleeve 240, the viewgraph of cross-section of the axle sleeve 240 of A-A intercepting along the line, the viewgraph of cross-section of the axle sleeve 240 of the compressor end view of axle sleeve 240 and B-B intercepting along the line.What also illustrate among Fig. 5 is the perspective view of the example of axle sleeve 540, and it does not comprise groove 249, does not therefore also comprise seal element 279.As described in this application, the various features of axle sleeve can be selectable.
In the compressor end view of axle sleeve 240, various radiuses are illustrated from the z axle and around the azimythal angle of z axle and extend.As shown in FIG., the radius of counterbore 258 is less than the radius of counterbore 256, and the radius of this counterbore 256 is less than the radius in hole 251.In addition, the radius of recessed outer surface 242 is less than the radius of outer surface 244.Still further, in the example of Fig. 5, various recesses 243 can be partly to be limited by each azimythal angle.
About axial dimension, the sectional view of B-B intercepting along the line show from axial vane surface 241 to the hole 251 end, to axial vane surface 255 and to the axial distance of axial vane surface 257.
Fig. 6 shows the sectional view of bearing 230 (for example, the bearing chuck) and axle sleeve 240, the schematic representation that their independent component and they and seal element 270 are assembled together, also show be equipped with seal element 270 the compressor end view.
In the viewgraph of cross-section of this assembly, axial dimension Δ z1 and Δ z2 are illustrated with respect to the compressor end of bearing 230 and the compressor end of axle sleeve 240.These sizes depend on the feature of bearing 230 and axle sleeve 240.Particularly, axial vane surface 255 plays the effect of the degree that axially is positioned at bearing 230 in the axle sleeve 240 and can stipulates thus to stretch out.Stretch out the various parts that can depend on turbocharger assembly, for example thrust ring, compressor backface plate etc.
As described in this application, bearing can comprise the one or more openings that allow oiling agent to pass through, and for example, from passage 248 to shaft space, it can comprise one or more rolling elements (for example, seeing ball 235) with respect to axle sleeve 240.
Fig. 7 shows has wheel 260, the viewgraph of cross-section of the axle 220 of bearing 230 and axle sleeve 240.As shown, the compressor end of axle 220 is inserted into bearing 230, is supported by axle sleeve 240 such as it, to form the turbosupercharger Runner assembly.
Can be balanced and then be placed in the housing such as described in this application, such assembly.In addition, if a tittle appears after the turbocharger operation and unbalanced (for example, because noise, vibrations etc.), compressor impeller can be removed and provide the entrance that axle sleeve can be fastened on any fastening piece the center housing to allow thus removing of axle sleeve/bearing/SWA assembly from the compressor end of axle.Then assembly can carry out balance or other inspection, safeguard etc., and if suitable, reinstall in the center housing.
Fig. 8 shows the skeleton diagram of an example of method 800, and described method comprises the axle sleeve that has seal element be used to providing, the bearing chuck, turbine shaft and wheel assembly, and turbine seal ring (or a plurality of ring) piece 810 is provided; For the positioning block 820 of the bearing chuck being located to form axle sleeve and bearing chuck assembly with respect to axle sleeve; For the building-blocks 830 that turbine seal ring (or a plurality of ring) is assembled on turbine shaft and the wheel assembly; And be used for to have the axle of seal ring (or a plurality of ring) and the axle of turbine assembly inserts the bearing chuck assembly to form the insertion piece 840 of sleeve assembly.In the example of Fig. 8, method 800 can also comprise be used to what housing with hole was provided provides piece 850; And the positioning block 860 that is used for sleeve assembly is navigated to the hole of housing.
As described in this application, sleeve assembly is navigated to form between hole and axle sleeve around the lubricant passageway of axle sleeve in the hole of housing and (for example seal, and in a plurality of seal elements one) and between the hole of axle sleeve and housing (for example, its middle shell, axle sleeve or both can comprise that feature is to install seal element or a plurality of seal element) form another sealing (for example, with a plurality of seal elements in another).
As described in this application, can carry out exercises (for example, seeing the controller 190 of Fig. 1) by controller, it can constitute according to instruction control able to programme.As described in this application, one or more computer-readable mediums can comprise that processor executable is with the one or more in this application described actions of command calculations machine (for example, controller or other computing device) execution.Computer-readable medium can be storage medium (for example, such as memory chip, storage card, the device of memory disk etc.).The storage medium (for example, via wired or wireless interface) that controller is can access such and Download Info (for example, instruction and/or other information) are to storage (for example, seeing the storage 194 of Fig. 1).As described in this application, controller can be control unit of engine (ECU) or other control unit.Such controller can optionally be programmed to be controlled to the flow of lubricant of turbosupercharger, lubricant temperature, and lubricant pressure, oiling agent filters, exhaust gas recirculatioon etc.
Although in accompanying drawing and the description in above-mentioned embodiment, shown method, device, system, some examples of layout etc., but be to be understood that disclosed exemplary embodiment is not restrictive, but in the situation that does not deviate from spirit above-mentioned and that limited by following claims, can make various rearranging, revise and replace.

Claims (17)

1. axle sleeve that is used for the turbosupercharger Runner assembly, this axle sleeve comprises:
Compressor end and turbine end;
Axially extend to the hole of turbine end from compressor end;
Radially extend to along the lubricant passageway of the axial position in the hole of axle sleeve from the axial position along the outer surface of axle sleeve;
Along the first counterbore of axially arranging between the axial position of the lubricant passageway in hole and the turbine end, wherein the first counterbore forms axial vane surface axially bearing is positioned in the hole of axle sleeve;
The second counterbore of between the first counterbore and turbine end, axially arranging, wherein the second counterbore comprises that sealing surfaces is partly to form oiling agent and exhaust sealing; And
Fastening piece is in order to fastening with respect to turbocharger housing with axle sleeve.
2. axle sleeve as claimed in claim 1, the outer surface of its Intermediate shaft sleeve comprise that circular groove is to install O shape ring at axial position around lubricant passageway along outer surface.
3. axle sleeve as claimed in claim 1, wherein the first counterbore comprises the angle less than 360 degree.
4. axle sleeve as claimed in claim 1 also comprises another lubricant passageway, and its cross-section area surpasses the cross-section area of lubricant passageway.
5. axle sleeve as claimed in claim 4, wherein another lubricant passageway comprises the oiling agent discharge route.
6. axle sleeve as claimed in claim 1 also comprises the oiling agent discharge route that axially is arranged at least in part between the first counterbore and the second counterbore.
7. axle sleeve as claimed in claim 1, wherein fastening piece is included in the parts that compressor end is arranged along the axial vane surface of axle sleeve.
8. axle sleeve as claimed in claim 1 also comprises one or more directional components.
9. axle sleeve as claimed in claim 8, wherein one or more directional components comprise the one or more axial vane surfaces that axially depart from the axial vane surface of compressor end.
10. axle sleeve as claimed in claim 1 also comprises the circular groove of arranging along the outer surface of axle sleeve.
11. axle sleeve as claimed in claim 10 also is included in the seal ring of arranging in the circular groove.
12. axle sleeve as claimed in claim 1 also comprises for forming the seal ring of sealing and be used for centering on another seal ring that outer surface forms sealing around lubricant passageway at axial position along outer surface.
13. a turbosupercharger Runner assembly comprises:
Bearing;
Axle and turbine assembly by the bearing supporting;
Seal ring around the axle layout; And
Axle sleeve, its block bearing and comprising:
Compressor end and turbine end;
Axially extend to the hole of turbine end from compressor end,
The first counterbore, it forms the axial vane surface that axially bearing is positioned in the hole,
The second counterbore of between the first counterbore and turbine end, axially arranging, wherein the second counterbore comprises sealing surfaces, described sealing surfaces forms oiling agent and exhaust sealing with the seal ring that arranges around axle, and
Fastening piece is in order to fastening with respect to turbocharger housing with axle sleeve.
14. turbosupercharger Runner assembly as claimed in claim 13, wherein fastening piece is included in the socket that compressor end is arranged along the axial vane surface of axle sleeve.
15. turbosupercharger Runner assembly as claimed in claim 13, its middle (center) bearing when in the hole that axially is positioned at axle sleeve, axially stretches out from compressor end.
16. turbosupercharger Runner assembly as claimed in claim 15, wherein fastening piece is included in the socket that compressor end is arranged along the axial vane surface of axle sleeve.
17. turbosupercharger Runner assembly as claimed in claim 13, its Intermediate shaft sleeve comprise around the circular groove of outer surface and the seal ring of arranging in circular groove.
CN201210410362.9A 2011-09-20 2012-09-19 Turbocharger runner assembly and the axle sleeve for the component Active CN103016545B (en)

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CN103016545B (en) 2017-05-31
US8911202B2 (en) 2014-12-16
US9879689B2 (en) 2018-01-30
EP2573362A2 (en) 2013-03-27
US20130071243A1 (en) 2013-03-21
EP2573362B1 (en) 2019-02-20
EP2573362A3 (en) 2017-12-27
US20150098800A1 (en) 2015-04-09

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